Skin treatment apparatus



FIG. 1 is a front view of the skin treatment apparatus;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a perspective view thereof.

The broken line showing of parts of the drawings is included for thepurpose of illustrating use and environment and forms no part of theclaimed design.

The ornamental design for a skin treatment apparatus, as shown and described. 